For the warrior(s) of the same name in the Ulster Cycle, see Mac Cécht (warrior)

In Irish mythology, Mac Cecht of the Tuatha Dé Danann was a son of Cermait, son of the Dagda. Mac Cecht's given name was Téthur and he was named Mac Cecht after his god, Cecht, the ploughshare. His wife was Fodla.